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STM32L031E4Yx
STMicroelectronics Arm Cortex-M0+ MCU, 16KB flash, 8KB RAM, 32 MHz, 1.65-3.6V, 20 GPIO, WLCSP25
Schematic Symbol
Pin Configuration (25 pins)
| Pin | Name | Type |
|---|---|---|
| A1 | PA13 | bidirectional |
| A2 | PA14 | bidirectional |
| A3 | PB6 | bidirectional |
| A4 | PB7 | bidirectional |
| A5 | BOOT0 | input |
| B1 | PA9 | bidirectional |
| B2 | PB3 | bidirectional |
| B3 | PA4 | bidirectional |
| B4 | PA1 | bidirectional |
| B5 | PC14 | bidirectional |
| C1 | PA8 | bidirectional |
| C2 | PA10 | bidirectional |
| C3 | PA7 | bidirectional |
| C4 | VDDA | power_in |
| C5 | PC15 | bidirectional |
| D1 | VDD | power_in |
| D2 | PB1 | bidirectional |
| D3 | PA5 | bidirectional |
| D4 | PA2 | bidirectional |
| D5 | NRST | input |
| E1 | VSSA | power_in |
| E2 | PB0 | bidirectional |
| E3 | PA6 | bidirectional |
| E4 | PA3 | bidirectional |
| E5 | PA0 | bidirectional |
Footprint
ConfirmedPackage_CSP/ST_WLCSP-25_Die425
Pad Layout
Pads (25)
| Number | Type |
|---|---|
| A1 | smd |
| A2 | smd |
| A3 | smd |
| A4 | smd |
| A5 | smd |
| B1 | smd |
| B2 | smd |
| B3 | smd |
| B4 | smd |
| B5 | smd |
| C1 | smd |
| C2 | smd |
| C3 | smd |
| C4 | smd |
| C5 | smd |
| D1 | smd |
| D2 | smd |
| D3 | smd |
| D4 | smd |
| D5 | smd |
| E1 | smd |
| E2 | smd |
| E3 | smd |
| E4 | smd |
| E5 | smd |